Abstract: A valve is provided and includes a component including a surface and a wear plate including a surface disposed in sliding engagement with the surface of the component. The surface of the wear plate includes a corrosion resistant substrate, a secondary layer disposed on a surface of the corrosion resistant substrate, a noble metal layer disposed on a surface of the secondary layer and a tertiary layer disposed on a surface of the noble metal layer.

Abstract: A flow controller is provided. The controller includes a shell body, a first supporting member, a driving shaft and an elliptical valve. The shell body has a passage passed therethrough. The first supporting member is assembled to the shell body. The driving shaft is assembled to the first supporting member. The elliptical valve is pivotally assembled in the passage and is connected with the driving shaft. The elliptical valve is rotated by the driving shaft for opening or closing the passage. When the passage is closed by the elliptical valve, the elliptical valve tightly abuts against an inner circular wall of the shell body for completely closing the passage, so that the controller is suitable in a high temperature and high pressure environment.

Abstract: Bearings 18 and 19 each are formed to have an inside diameter gradually extending toward two ends along an axial direction of a shaft 20 such that the inside diameter of the bearing is smaller at the center portion thereof and is larger at the two ends thereof.

Abstract: The invention relates to a valve device and to a method for transferring a transfer medium, said valve device and method having an inflow, an outflow and two valve disks which are arranged one behind another in the direction of flow and are pivotable about a common rotational axis for opening and closing the lumen which surrounds them, wherein the inflow and the outflow are formed by two housing sections which are lockable together, the ends of which facing one another receive in each case a valve disk with a fixedly connected half-shaft, wherein, with the housing sections in the locked state, the two half-shafts form one common shaft which is pivotable about the rotational axis and the valve disks abut closely against one another, and wherein, with the housing sections in the non-locked state, the valve disks in each case close the lumen of the housing section receiving them.

Abstract: A butterfly valve for use with a tank trailer includes housing, a lateral extension, a shaft provided through the extension, the back end of the shaft having a seat for accommodating a handle thereon, and further extensions may connect with the first mentioned extension. The handle turns the butterfly valve between opened and closed positions.

Abstract: Disclosed is a butterfly valve capable of controlling fluid flow according to rotation of a disc. The butterfly valve includes a valve body having an inner space of which two end portions are open; first and second discs disposed to face each other at the inner space, installed to be rotatable between an open state and a closed state of the inner space, and configured to selectively open and close the inner space; first and second sealing members mounted to the valve body, and configured to contact the first and second discs, respectively in the closed state; and a disc controlling apparatus configured to move the first and second discs to a direction contacting to or spacing from the first and second sealing members in the closed state. Under this configuration, durability and a sealing function may be enhanced.

Abstract: A valve is disclosed and can include a valve body having a central bore for passage of fluid there through and a longitudinal axis. The valve can also include a seal installed within the valve body along the central bore. The seal can include a first seal member having an annular ring portion and a hub portion extending from the annular ring portion. The seal can also include a second seal member including an annular ring configured to engage a distal end of the hub portion and create a sealing engagement between the hub portion and the annular ring when a compressive force is applied to the first and the second seal members.

Abstract: A back pressure valve for a fuel cell stack assembly is disclosed, wherein the valve includes a solenoid disposed thereon, an energization of the solenoid causing a generation of heat in a valve flap to facilitate a melting of ice that has formed in the valve.

Abstract: A butterfly valve comprises: a body including a valve opening; and a flapper rotatably mounted about a rotation axis so as to be movable relative to the valve opening. The flapper is rotatable at least 180° about the rotation axis so that the flapper is movable to at least one fully opened position, at least one fully closed position 90° apart from the fully opened position, and a third position, either fully opened or fully closed, 180° from the other like position. In one embodiment the flapper is rotatable at least 360° about the rotation axis so that the flapper is movable to each of two opened positions 180° apart, and two closed positions 180° apart from each other and 90° and 270° apart from each of the fully opened positions. The valve can be easily calibrated and controlled, and cleaned to extend the useful service life between cleanings.

Abstract: A butterfly valve comprises a housing including a bore, a rotatable shaft passing through the bore, a disc mounted to the shaft for controlling the flow of a fluid through the bore, a thrust load reacting section and a wear interface. The thrust load reacting section includes a thrust plug assembled in a thrust reacting end of the shaft and a thrust plate secured to the housing. The thrust plate has a well for axially retaining the thrust plug and the thrust reacting end of the shaft. The wear interface includes a first contact region on the thrust plug with a first contact surface and a second contact region at the base of the well with a second contact surface. A portion of the first contact surface is spherical and in contact with a portion of the second contact surface.

Abstract: An actuator for a butterfly valve, having a gearbox, an actuator stem and a handle. The actuator stem is formed as a single piece, comprising a position indicator, seal disc, worm gear, and stem shaft with splines for fitting into the valve. The handle is also formed as a single piece, comprising the wheel or knob, shaft, and worm for operating the worm gear. By forming the gearbox as a single piece as well, the entire actuator can be made as three major pieces. Optionally, the gearbox can be formed with cylindrical fittings which press-fit over pins on the valve, replacing the conventional mounting bracket.

Abstract: A split valve apparatus for the control, charging, discharging and/or regulating the flow of powders, liquids, slurries and/or fluids. The valve has two valve portions complementarily shaped such that the first can sealingly engage with and co-operate with the second to allow the flow of material therethrough. Each valve portion comprises a housing, a valve seat and a valve closure member, which is movable between two positions.

Abstract: A throttle valve device ideal for small, inexpensive implements is provided. The throttle valve device having a damping member for slowly closing a throttle valve. The throttle valve device (1) has a throttle valve (4) that is fixed to a throttle shaft (5) pivotably supported in an air intake passage (2) and that is urged towards the closed direction, the throttle valve (4) adapted for adjusting the amount of air passing through the air intake passage (2). A through-bore (31) penetrating a shaft bore of the throttle shaft (5) is formed in a body, and a damping member (8) having frictional capabilities is inserted into and supported in the through-bore (31) in a state of pressing against the throttle shaft (5) inserted through the shaft bore (51).

Abstract: Packing followers for use with valves are described. An example packing follower for use with a valve includes a body having an elongated portion and a bore therethrough to receive a shaft. A portion of the bore is tapered to exert a force on a retainer that at least partially surrounds and is positioned within a groove of the shaft when the shaft moves toward an opening defined by the body. Additionally, the force has a first component in a direction perpendicular to a longitudinal axis of the bore and a second component smaller than the first component in a direction parallel to the longitudinal axis of the bore.

Abstract: The invention relates to a vacuum valve for interrupting, releasing or controlling a flowing medium in the interior (3) of the vacuum valve (1). A shaft (6) coupled to a valve drive (5) is routed gas-tight from the atmospheric area (4) to the interior (3) through a valve housing (2) by way of a sealing shaft penetration (20) so that a movement produced by the valve drive (5) can be transferred from the atmospheric area (4) to the interior (3) for the purposes of interrupting, releasing or controlling the flow.

Abstract: Throttle body assemblies having improved throttle position sensing assemblies and a method of integrating a throttle position sensor assembly with a throttle body assembly are described. The method comprises the steps of: i) press-fitting a sensor element onto a shaft of a throttle plate of a throttle body assembly; ii) engaging one or more inwardly extending members of the sensor element with one or more recessed portions formed on the shaft of the throttle plate; and iii) disposing an inductive rotary position sensor proximate the sensor element, wherein the press-fit engagement and one or more inwardly extending members limit axial and rotational movement of the sensor element with respect to the throttle plate, and wherein the inductive rotary position sensor detects a relative position of the sensor element for the purpose of ascertaining a position of the throttle plate.

Abstract: A tri-eccentric valve with a symmetric drain-proof ring includes a valve body, a stem, a valve disk, a waterproof washer, and a drain-proof ring. The valve disk is formed as an asymmetric conical shape. The drain-proof ring is an O ring and is arranged in a stepped recess of the valve disk to seal the waterproof washer; the drain-proof ring is symmetric to the axis of the ring. In assembly state, a periphery of the drain-proof ring resists against an inner wall of the annular seat. The drain-proof ring is symmetrical and thus is easy to be installed to the valve disk without to align the drain-proof ring to a specific angle. Furthermore, it can be designed by computers and is manufactured by machines. When dirt accumulates on the drain-proof ring, it can remove the dirt by directly rotating the drain-proof ring.

Abstract: A butterfly valve for a turbocharger system in which the leak path through the valve is controlled by keeping the clearance between either a shaft of the valve and two bushings small or the clearance between the bushings and the counter bores in the valve element small, and making the other clearance larger.

Abstract: Embodiments of a combination bearing are provided, as are embodiments of a valve assembly including a combination bearing. In one embodiment, the valve assembly includes a flowbody having a flow passage therethrough, a drive shaft rotatably mounted within the flowbody, a valve element mounted to the drive shaft and positioned within the flow passage, and a combination bearing coupled between the flowbody and the drive shaft. The combination bearing comprises an integral radial load/thrust ring coupled to the drive shaft, and a thrust washer substantially adjacent the integral radial load/thrust ring, as taken along the longitudinal axis of the combination bearing. An outer radial ring circumscribes the integral thrust/radial load ring. A first plurality of rolling elements is captured between the thrust washer and the integral radial load/thrust ring, and a second plurality of rolling elements is captured between the outer radial ring and the integral radial load/thrust ring.

Abstract: An example valve shaft apparatus includes a shaft having a stationary seal and a dynamic seal spaced from the stationary seal. The stationary seal defines a first leakage detection area adjacent the stationary seal and the dynamic seal defines a second leakage detection area adjacent the dynamic seal. A seal leakage detector is integrally formed with the shaft to provide a visual indication of process fluid leakage within the first leakage detection area or within the second leakage detection area. The seal leakage detector has a passageway in fluid communication with the first leakage detection area and the second leakage detection area. The passageway has a cross-sectional profile that changes between the first and second leakage detection areas to prevent fluid from flowing from one of the leakage detection areas into a body of the fluid valve.

Abstract: A valve control for a fluid system is provided. The valve control includes a body, a handle, a flange, a mounting bracket, and a sensor. The body is configured to be releasably connected to a port. The handle is swiveably mounted to the body. The flange is releasably connected to the body. The mounting bracket is releasably connected to the flange. The sensor is offset from the handle and adjustably connected to the mounting bracket such that the handle is configured to be bidirectionally operable.

Abstract: Disclosed herein is a locking mechanism for a valve device having a valve body for retaining the valve body at a predetermined opened position, including: a disk having a rotational shaft rotatable together with a valve body driving shaft and having a cutout groove formed on an outer circumferential face thereof; a ball disposed in the cutout groove; a body member having an axial direction restriction face and an inner circumferential face; a holder member having an engaging face which has a diameter gradually decreasing toward the ball and is engageable with the ball; and a spring member biasing the holder member toward the ball, wherein said ball is clamped by and among the engaging face which is acted upon by the biasing force of said spring member, the axial direction restriction face and the inner circumferential face so that a rotational direction position of the rotational shaft is retained.

Abstract: The invention relates to a system and to a method for controlling an aircraft engine starter-generator. The system comprises a transmission box (20) with a fixed gear ratio intended to be mechanically coupled to a turbine shaft (12) of the engine to allow the latter to be started, a gearbox (40) with multiple gear ratios that is mechanically coupled to a pinion of the transmission box, a starter-generator (30) mechanically coupled to a pinion of the gearbox, and means for instigating a change in gear ratio of the gearbox according to the mode of operation of the starter-generator.

Abstract: An illustrative damper system includes a damper blade that is configured to be positioned within a duct, such as a bypass duct of an HVAC system. A shaft is in communication with the damper blade, a torsion spring is in communication with the shaft, and a force adjustment mechanism is in communication with the torsion spring. The shaft, the damper blade, and the torsion spring may be configured such that the shaft may affect movement of the damper blade about a rotation axis and the torsion spring may provide a bias force to the shaft for biasing the damper blade toward a desired position (e.g. closed position).

Abstract: A butterfly valve includes a duct defining a flow pathway and a valve disc rotably disposed in the flow pathway. A pneumatic actuator includes an intermediate chamber housing an actuator piston and is operably connected to the valve disc to drive rotation of the valve disc. A downstream bleed conduit extends from the flow pathway downstream of the valve disc to the intermediate chamber to pressurize the intermediate chamber thereby reducing a rate of movement of the valve disc in the flow pathway.

Abstract: The invention relates to a method for filling a receptacle (200) with carbon nanotubes from another receptacle (106) whereby the CNTs are passed from one receptacle to the other by means of a coupling (300) comprising a double-valve device (30), each valve being coupled to one of the receptacles, the valves (31, 32) closing independently and tightly and being openable only when they are coupled to one another.

Abstract: A double eccentric butterfly valve having a housing, a shaft, a seat ring, and a vane, wherein the seat ring is radially flexible to conform to the spherical rim of a vane having one of the rim portions extending in width in order to improve the dynamic torque characteristics of the valve; means to prevent expulsion of the shaft from the vane due to hydrostatic forces of fluid passing the valve.

Abstract: A valve assembly includes a valve body having a valve body central axis. A valve actuator is operably connected to the valve body and is located such that a central axis of the valve actuator is nonparallel to the valve body central axis. A strut extends from the valve body to the valve actuator to support the valve actuator in a fixed relationship to the valve body. A pneumatically-actuated butterfly valve includes a valve body having a valve body central axis and a valve disc. A pneumatic actuator is located such that its central axis is nonparallel to the valve body central axis. The actuator includes a piston disposed in a cylinder, the piston operably connected to the valve disc. A strut extends from the valve body to support the actuator in a fixed relationship to the valve body.

Abstract: The invention relates to vanes used in butterfly valves utilized in fluid control systems requiring special relationships between passing fluid and vane rotation and furthermore can provide leak proof shut-off when in the closed valve position and due to the extended contact length between the vane and the valve bore assures low opening friction. The invention furthermore features a shape that greatly reduces the customary high dynamic torque created by fluid suction effects on a vane when in the open position.

Abstract: An improved disc for a butterfly valve having reduced structure within the bore of the valve, so as to minimize obstruction to the flow of granular material therethrough. Accelerated flow of granular material through the valve is obtained because of the thin dimensions of the butterfly valve. The modified disc includes upper and lower sockets, most of its structure is outside the perimeter of the disc. The disc may be of arcuate shape.

Abstract: A valve actuator includes an actuator housing, a piston, a linkage assembly, a magnet, and a Hall sensor. The actuator housing is adapted to receive pressurized fluid. The piston is movably mounted within actuator housing, and is configured to translate in a first direction and a second direction. The linkage assembly is rotationally coupled to the piston and is adapted to couple to a valve element. The linkage assembly is configured to rotate the valve element in a first rotational direction and a second rotational direction in response to piston movement in the first direction and the second direction, respectively. The magnet is mounted on the piston and is movable therewith, and the Hall sensor is mounted on the actuator housing and is responsive to movement of the magnet to supply a position signal.

Abstract: A coupling arrangement coupling and thermally isolating a continuously variable electrical actuator rotationally coupled to and from a butterfly valve is provided. The valve may be used to modulate high temperature exhaust gas flow through an engine turbocharger. The actuator provides a continuously variable control of the valve. The coupling arrangement provides a thermal block to reduce heat transfer and vibration insulation between the actuator and the valve. The coupling arrangement generally includes a coupling shaft rotationally coupled at opposite ends to the input and output shafts by torsion spring mechanisms. The torsion spring mechanisms include yokes rotationally locking the coupling shaft to the input and output shafts. The torsion spring mechanisms allow a limited range of axial and pivotal translation between the coupling shaft and the input and output shafts and are preloaded to prevent rotational hysteresis in the valve.

Abstract: A valve for a combustion engine air intake circuit, where the valve includes a main pipe and a bypass duct with upstream and downstream ends opening into the main pipe. The valve also includes a heating member that is positioned in the bypass duct and a shut-off member mounted such that it can move between a first position in which airflow can pass through the main pipe and a second position in which airflow can pass through the bypass duct.

Abstract: A valve (e.g., shutoff or regulating) is provided including a valve body having a fluid passage and a disc assembly. The disc assembly is pivotable within the fluid passage from an open position wherein the disc assembly is positioned within the fluid passage to provide for free flow of fluid through the fluid passage, to a closed position wherein the disc assembly is positioned within the fluid passage to substantially close off the fluid passage. The disc assembly includes a disc having a circumferential edge having a groove. A seal (e.g., an O-ring) is disposed in the groove. A pressure relief mechanism (e.g., a plurality of apertures) is provided adjacent to the seal to partially relieve differential pressure on the seal caused by fluid passing through the fluid passage. A similar valve having its seal located on the valve body is also provided.

Abstract: The invention relates to a fluid valve, in particular for the exhaust gas from a motor vehicle, comprising: a body (30) defining at least one duct (32), and a movable flap that can rotate about a shaft between a closed position preventing the fluid from flowing through the duct (32) and an open position allowing the fluid to flow through the duct (32). According to the invention, the valve includes an opening clearance (E) between flap and a wall (62) of the body (30) for the passage of the fluid, said clearance (E) extending in a direction parallel to the pivot shaft of the flap over a length that varies according to the angular position of the flap.

Abstract: The invention relates to a fluid valve comprising a movable flap (1) provided with a first wing (3) and a second wing (4), said valve also including a gasket (2) having an opening (5) for the passage of the fluid. At least one (3) of the aforementioned wings, known as the sealing wing, can seal the opening (5) in the gasket (2) at least partially when the flap (1) is in the closed position. According to the invention, the sealing wing (3) and the other wing (4) are positioned on each side of the gasket (2) when the flap is in the closed position and the flap comprises an intermediate area (6) connecting the first (3) and second (4) wings and extending through the opening in the gasket (6).

Abstract: An throttle body for rotating a valve shaft of an air-intake throttle valve through a decelerating mechanism by a motor and change the opening area of an air-intake passage by rotating the valve shaft is equipped with a lever portion that is disposed so as to be interlocked with the decelerating mechanism and regulates the opening degree of the air-intake throttle valve under the full-open state, and an adjusting screw that is threadably inserted from the outside of the body portion and abuts against the lever portion in the body portion to change the opening degree of the air-intake throttle valve under the full-open state.

Abstract: At least one set of locator pins is provided on the flange of an intake manifold which couple with an orifice provided on the flange of a throttle body to align the two parts to ensure that they are properly oriented when assembled. In addition, through holes are provided on the throttle body flange and threaded inserts are provided on the flange of the intake manifold. The locator pins are coupled with the orifices prior to inserting a bolt through the through holes to engage with the threads of the threaded insert. By providing the locator pins, the two flanges are held in a desired orientation so that the ducts of the two flanges are properly aligned to substantially eliminate a step or mismatch at the interface.

Abstract: An impact absorber is arranged between a first rotation member and a second rotation member that are coaxially arranged to rotate in a circumference direction around a rotation axis. The first rotation member has a recess continuously extending in a direction inclined to the rotation axis from a first end to a second end, and a lock part extending in the circumference direction from the second end of the recess. The second rotation member has a projection configured to be engaged with the recess continuously from the first end of the recess to the second end of the recess. The projection of the second rotation member is locked with the lock part of the first rotation member when the projection moves to the lock part from the second end of the recess.

Abstract: A flow control valve in which corrosion is less likely to occur in the vicinity of a radial step portion in a gas passage of a housing and a method for manufacturing the same are provided. A flow control valve includes: a housing formed with a gas passage including a first cylinder member accommodating portion, a second cylinder member accommodating portion, and a radial step portion; a first cylinder member accommodated in the first cylinder member accommodating portion; a second cylinder member accommodated in the second cylinder member accommodating portion; and a valve body that is rotatably arranged inside the first cylinder member and the second cylinder member in the radial direction. The housing is formed of cast iron. At least surfaces of the first cylinder member and the second cylinder member are formed of a highly corrosion resistant material.

Abstract: The invention relates to a faucet including an annular body (101), a throttle valve (102) constituting a seat and an annular metal gasket positioned therebetween while being accommodated in a recess, the movable sealing element being connected by a plate to a static sealing element gripped within the recess, the plate is flexible and there is play between the recess and the part of the main surfaces of the dynamic sealing element closest to the seat (102) when said element is remote from the seat (102).

Abstract: A body for an actuated valve, the actuated valve comprising flow regulating means for regulating the flow of a fluid between an input bore and an output bore of a barrel, and actuating means for controlling a position of the flow regulating means, the body comprising: a barrel having at least the input bore and the output bore; an actuating volume inside of which at least part of the actuating means can be placed, wherein the barrel and the actuating volume are integrally formed in a single piece.

Abstract: A valve has a valve body provided on its inner peripheral surface with a seat ring, a stem arranged to extend in a direction substantially perpendicular to the axis of a flow passage defined in the valve body, and a valve element rotatably supported through a bush attached to the stem, and opens or closes the flow passage by pressing or separating the valve element against or from the seat ring in the valve body in accordance with the rotation of the valve element. The valve body is molded after the valve element, the seat ring, the stem, and the bush are placed in predetermined positions in a mold.

Abstract: A throttle valve for controlling a fluid flow includes a throttle housing (4), a gas passage (18) in the throttle housing (4), a throttle shaft (8) which is pivotably supported in the throttle housing (4), and a throttle (6) which is connected to the throttle shaft (8). The throttle shaft (8) extends through a jacket (12) which is provided on the throttle (6) and at least partially encompasses the throttle shaft (8). After the throttle (6) is installed on the throttle shaft (8), a hardening filler material (10) creates a form-fit connection between the throttle (6) and the throttle shaft (8).

Abstract: The present invention suppresses the sliding between a circular plate-shaped member and a seating section, and improves the cleaning efficiency. A butterfly valve according to the present invention is provided with a circular plate-shaped valve element 2, a pair of support shafts 3 and 4, a pair of support shaft moving means, and a drive shaft 10. The valve element 2 is seated on and removed from the valve seat 14 from below. The drive shaft 10 drives and rotates the support shaft 3. As the support shafts 3 and 4 are rotated by the drive shaft 10, the valve element 2 is rotated and inverted. The support shaft moving means includes decentered shafts 5 and 6 that are rotatably supported by casings 1b and in which the support shafts 3 and 4 are respectively inserted in a decentered state, and air cylinders 7 and 8 configured to apply a force to the support shafts 3 and 4 in the upward and downward direction.

Abstract: This invention relates to a novel rotary control valve with new joint methods and flow control mechanisms, line-reparability and fully metal seals more particularly to a triple offset butterfly valve or ball valve with those features used for on-off and flow controlling under multiple extreme conditions or in sever service; such as the integrated gasification combined cycle under high temperature and pressure, Fluid Catalytic Cracking under high temperature over 1200 F with hard diamond like catalytic particles, shale fracking process under extreme high pressure and high velocity fluid with solid particles and corrosive additives and other critical applications for products life lasting 5 to 30 years like deepsea flow control systems and nuclear power plants and for the applications of millions cycles like jet or rocket turbine engine fuel delivery systems with high velocity fuel fluid mixed with highly oxidative gas under temperature 1365 F.

Abstract: A steam turbine exhaust hood includes an exhaust hood section, and a butterfly plate arranged in the exhaust hood section. The butterfly plate includes a complex curvilinear cross-sectional profile having a first section that extends between a first end portion and a middle portion, and a second section that extends between the middle portion and a second end portion. One of the first and second sections is formed from at least two curvilinear segments including at least one curvilinear segment having a positive curvature and at least one curvilinear segment having a negative curvature.

Abstract: An adjustable valve assembly is disclosed. The valve assembly comprises a mounting portion and an adjustment assembly comprising an adjustable member threadably engaged with the mounting portion, the adjustable member adapted to change its position relative to the mounting portion when rotated and a clevis coupled to the adjustable member, wherein the position of the clevis relative to the mounting portion is adjustable by rotation of the adjustable member.

Abstract: A shutoff valve, e.g., an engine shutoff valve, is provided which includes a valve body having a fluid, e.g., air, passage and a disc assembly. The disc assembly is pivotable within the fluid passage from an open position to provide for free flow of fluid through the passage, to a closed position to provide a substantially closed off the fluid passage. The disc assembly includes a front disc, a rear disc, and a seal, e.g., a spring energized PTFE seal, disposed between the front disc and the rear disc. The front disc is permanently secured, e.g., welded, soldered or brazed, to the rear disc such that the seal is captured between the front disc and the rear disc.

Abstract: A back pressure valve for a fuel cell stack assembly is disclosed, wherein the valve includes a solenoid disposed thereon, an energization of the solenoid causing a generation of heat in a valve flap to facilitate a melting of ice that has formed in the valve.